I have exactly the same problem.
bought a new 950, upgraded it to the latest version. If I connect wirelessly to it, I get an IP address and can surf.
If I connect via a LAN port, I do not get an IP address, even if I enter a fixed IP address, I can not surf.
(I have reset it several times)
Unfortunately, I can not find the settings you mention in 1.
The ones that are under 2, I can add but then the wireless network stops working.